27665823948 has 36 divisors (see below), whose sum is σ = 75092952312. Its totient is φ = 7904520960.

The previous prime is 27665823947. The next prime is 27665824027. The reversal of 27665823948 is 84932856672.

It is a junction number, because it is equal to n+sod(n) for n = 27665823891 and 27665823900.

It is not an unprimeable number, because it can be changed into a prime (27665823947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23524773 + ... + 23525948.

It is an arithmetic number, because the mean of its divisors is an integer number (2085915342).

Almost surely, 2^27665823948 is an apocalyptic number.

27665823948 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27665823948 is an abundant number, since it is smaller than the sum of its proper divisors (47427128364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27665823948 is a wasteful number, since it uses less digits than its factorization.

27665823948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47050742 (or 47050733 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 60.

The spelling of 27665823948 in words is "twenty-seven billion, six hundred sixty-five million, eight hundred twenty-three thousand, nine hundred forty-eight".